After the opening Bush shared a photo on Instagram with the caption: 'Thanks for taking our photo with the Bonner family, Mr. President. A great Nation does not hide its history; it faces its flaws and corrects them. The @nmaahc tells the truth: that a country founded on the promise of liberty held millions in chains…that the price of our Union was America’s original sin. I was honored to sign the bill authorizing the construction of this national treasure. And I am pleased it now stands where it has always belonged: on the National Mall.'

George W Bush was posing for a photo with a woman outside the Smithsonian National Museum of African American History and Culture today

Bush, who was a guest of honor, grabbed her phone while Barack Obama (left) was shaking hands with Ruth Bonner, who rang a bell at the dedication ceremony